Playstation can be extremely difficult as I know they require a credit card to verify but you can remove it from the account after verification and apply PSN cards.
I have a link to generate PSN $ amounts starting at $10, if you wanna check the article and generater out
https://www.google.com.au/url?sa=t&source=web&rct=j&url=https://thepsnblog.com/free-psn-code-generator/&ved=2ahUKEwirmsiwjebdAhUZUd4KHdQBA0wQFjANegQIBhAB&usg=AOvVaw293Q-epjW_3ZlB_Aro8j3n&cshid=1538426570004 :pepo: